2e80c2a7d9
block and fragment sizes by default instead of the ordinary 1M/8k/1k default for larger filesystems.
77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
/* $NetBSD: config.h,v 1.9 2012/02/02 03:50:32 perseant Exp $ */
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/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)config.h 8.3 (Berkeley) 5/24/95
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*/
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/*
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* Version of the LFS to make. Default to the newest one.
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*/
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#define DFL_VERSION LFS_VERSION
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/*
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* 1/DFL_MIN_FREE_SEGS gives the fraction of segments to be reserved for
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* the cleaner.
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*/
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#define DFL_MIN_FREE_SEGS 10
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/*
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* MINFREE gives the minimum acceptable percentage of file system
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* blocks which may be free. If the freelist drops below this level
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* only the superuser may continue to allocate blocks.
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*/
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#define MINFREE 10
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/*
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* The following constants set the default block and segment size for a log
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* structured file system. The block size must be a power of two and less
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* than the segment size.
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*/
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#define LFS_MINSEGSIZE (64 * 1024)
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#define DFL_LFSSEG (1024 * 1024)
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#define DFL_LFSSEG_SHIFT 20
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#define DFL_LFSSEG_MASK 0xFFFFF
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#define LFS_MINBLOCKSIZE 512
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#define DFL_LFSBLOCK 8192
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#define DFL_LFSBLOCK_SHIFT 13
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#define DFL_LFSBLOCK_MASK 0x1FFF
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#define DFL_LFSFRAG 1024
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#define DFL_LFS_FFMASK 0x3FF
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#define DFL_LFS_FFSHIFT 10
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#define DFL_LFS_FBMASK 0x7
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#define DFL_LFS_FBSHIFT 3
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#define SMALL_FSSIZE 65536 /* sectors */
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#define SMALL_LFSSEG 32768
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#define SMALL_LFSBLOCK 1024
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#define SMALL_LFSFRAG 512
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